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  <h1 class="title">简介</h1>
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   This is an interface to the mcrypt library, which supports a wide
   variety of block algorithms such as DES, TripleDES, Blowfish
   (default), 3-WAY, SAFER-SK64, SAFER-SK128, TWOFISH, TEA, RC2 and
   GOST in CBC, OFB, CFB and ECB cipher modes. Additionally, it
   supports RC6 and IDEA which are considered &quot;non-free&quot;.
   CFB/OFB are 8bit by default.
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